The absence of aircraft wreckage and documentation precludes an analysis of the technical aspects of this accident. This analysis, therefore, concentrates solely on the operational aspects. The high impact speed is indicative of either a loss of control followed by a rapid descent into terrain or controlled flight into unseen terrain. Given that the pilot reported encountering snow showers within 15 miles of the accident site, it is possible that the weather continued to deteriorate and may have adversely affected the pilot's ability to maintain visual contact with the terrain.Analysis The absence of aircraft wreckage and documentation precludes an analysis of the technical aspects of this accident. This analysis, therefore, concentrates solely on the operational aspects. The high impact speed is indicative of either a loss of control followed by a rapid descent into terrain or controlled flight into unseen terrain. Given that the pilot reported encountering snow showers within 15 miles of the accident site, it is possible that the weather continued to deteriorate and may have adversely affected the pilot's ability to maintain visual contact with the terrain. The weight and centre of gravity of the aircraft at the last take-off were estimated to have been within the prescribed limits. The pilot was certified, trained, and qualified for the flight in accordance with existing regulations. Marginal visual weather conditions existed in the vicinity of the accident site. It is possible that deteriorating weather affected the pilot's ability to maintain visual contact with the terrain.Findings The weight and centre of gravity of the aircraft at the last take-off were estimated to have been within the prescribed limits. The pilot was certified, trained, and qualified for the flight in accordance with existing regulations. Marginal visual weather conditions existed in the vicinity of the accident site. It is possible that deteriorating weather affected the pilot's ability to maintain visual contact with the terrain. It was not determined why the aircraft struck terrain; however, it is likely that the contact occurred during conditions of reduced visibility.Causes and Contributing Factors It was not determined why the aircraft struck terrain; however, it is likely that the contact occurred during conditions of reduced visibility.